PDF malware analysis — malicious · 5776edee57a5b896

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 20:33:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 067dbd0b6e5b91756c37a51d6894229c SHA-1: ef664fbec72384586b9f7fdb95c2e122c4badc9d SHA-256: 5776edee57a5b896853a1e5a85e95befdfc91513cdc88df1d59fe6e3e18b474e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.xyz/app/406889139/coin-master-hack-apk-no-fb-login-game-hack PDF link annotation
- https://htdvn.com/public/upload/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/give-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/give-me-robux-now_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/wurst-client-112-2_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004bdf.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BDF	25072 bytes
SHA-256: `5bb44fae90e7a59a6090472ac2d6dc57f15126c601d569471f89f81daabc36f0`
`font_01_sfnt_off00008385.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8385	18504 bytes
SHA-256: `78d6517c7e7bb6e1c795c442c03a5e1c53288b74fb53ad17eab4d7ee61bd6ac2`

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